23210729390 has 32 divisors (see below), whose sum is σ = 42243030144. Its totient is φ = 9181393920.

The previous prime is 23210729363. The next prime is 23210729411. The reversal of 23210729390 is 9392701232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330907 + ... + 1348233.

It is an arithmetic number, because the mean of its divisors is an integer number (1320094692).

Almost surely, 2^23210729390 is an apocalyptic number.

23210729390 is a deficient number, since it is larger than the sum of its proper divisors (19032300754).

23210729390 is a wasteful number, since it uses less digits than its factorization.

23210729390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18812.

The product of its (nonzero) digits is 40824, while the sum is 38.

The spelling of 23210729390 in words is "twenty-three billion, two hundred ten million, seven hundred twenty-nine thousand, three hundred ninety".